Well, 'Beyond the Border Walls' is a really cool fanfic. It focuses on a group of characters who are trying to break through some hidden barriers in the Border world. It has some great action scenes and character development. Also, 'A Border's Secret Alliance' is quite good. It reveals some secret relationships between different factions in the Border manga's setting.
Berserk is also a great choice. It follows the story of Guts, a lone mercenary with a tragic past. The manga has a dark and gritty atmosphere, with detailed art and a complex story that delves into themes like fate, revenge, and the nature of power. It's not for the faint of heart but offers a truly immersive reading experience.
'A Silent Voice' is a deeply moving pure girl manga novel. It deals with themes like bullying and redemption. The female character Shoko is a deaf girl, and her story of dealing with the world around her is both heart - breaking and inspiring. 'Orange' is also great. The story follows a girl named Naho and her time - traveling letters, and it has a very pure and emotional storyline.
You should check out 'Attack on Titan'. It offers a unique and intense post-apocalyptic setting, complex characters, and a plot that keeps you on the edge of your seat.
You should try 'Ouran High School Host Club'. It's not just romantic but also full of comedy and charming characters. The plot is both fun and heartwarming.
You could try 'Ao Haru Ride'. It has beautiful art and a touching story of young love and self-discovery. The characters are very relatable and the plot keeps you engaged.